No problem foreseen.<br><br>The issue was that the "value" was added to the DRL even though the operator "not null" didn't need a value.<br><br>Another work around is to first use "equals", then enter a literal value (a single space, or empty string) and then the "not null" operator.<br>
<br>Your work around seems simpler though.<br><br><div class="gmail_quote">2011/9/5 puja nandamuri <span dir="ltr"><<a href="mailto:med_9501@yahoo.com">med_9501@yahoo.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font:inherit" valign="top">what do you think of using the function route as a work around?<div><br></div><div>do you see any issues with using that ?<div class="im">
<br><br>--- On <b>Mon, 9/5/11, Michael Anstis <i><<a href="mailto:michael.anstis@gmail.com" target="_blank">michael.anstis@gmail.com</a>></i></b> wrote:<br></div><blockquote style="border-left:2px solid rgb(16, 16, 255);margin-left:5px;padding-left:5px">
<div class="im"><br>From: Michael Anstis <<a href="mailto:michael.anstis@gmail.com" target="_blank">michael.anstis@gmail.com</a>><br>Subject: Re: [rules-users] is null or is not Null failing for a String field check in Guvnor drl<br>
To: "Rules Users List" <<a href="mailto:rules-users@lists.jboss.org" target="_blank">rules-users@lists.jboss.org</a>><br></div>Date: Monday, September 5, 2011, 1:04 PM<div><div></div><div class="h5"><br><br>
<div>Shame :(<br><br>5.2.0.Final could well be fixed... are you able to try that? CR! was effectively pre-release.<br><br><div>2011/9/5 puja nandamuri <span dir="ltr"><<a rel="nofollow" href="http://mc/compose?to=med_9501@yahoo.com" target="_blank">med_9501@yahoo.com</a>></span><br>
<blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font:inherit" valign="top">Michael,<div><br></div>
<div>Thanks. Yes, I am using 5.2.0.CR1.I do not have a choice to move to 5.3 at this point.</div><div><br></div><div>as an alternate, I am using the following work around.</div><div><br></div><div>to be able to do 'is null' or 'is not null' for checking null condition on a field,</div>
<div><br></div><div>I select 'equal to' as the operator and then, I click on the function button instead of literal value .</div><div><br></div><div>In the text box that comes up, I enter null </div><div><br>
</div>
<div>Doing this validates the condition successfully and I am able to run the test scenario successfully .</div><div>similarly, I select 'not equal to' operator for checking is not null condition and then in the function text box, I enter
null.</div><div><br></div><div> </div><div><br></div><div><br></div><div><br><br>--- On <b>Mon, 9/5/11, Michael Anstis <i><<a rel="nofollow" href="http://mc/compose?to=michael.anstis@gmail.com" target="_blank">michael.anstis@gmail.com</a>></i></b> wrote:<br>
<blockquote style="border-left:2px solid rgb(16, 16, 255);margin-left:5px;padding-left:5px"><br>From: Michael Anstis <<a rel="nofollow" href="http://mc/compose?to=michael.anstis@gmail.com" target="_blank">michael.anstis@gmail.com</a>><br>
Subject: Re: [rules-users] is null or is not Null failing for a String field check in Guvnor drl<br>
To: "Rules Users List" <<a rel="nofollow" href="http://mc/compose?to=rules-users@lists.jboss.org" target="_blank">rules-users@lists.jboss.org</a>><br>Date: Monday, September 5, 2011, 12:13 PM<div><div></div>
<div><br><br><div>
It was a bug but was fixed a while ago.<br><br>I can't recall if it made 5.2 - but it definately doesn't exist in 5.3.0.CR1 (or master branch as of today - I just checked).<br><br><div>2011/9/5 puja nandamuri <span dir="ltr"><<a rel="nofollow" href="http://mc/compose?to=med_9501@yahoo.com" target="_blank">med_9501@yahoo.com</a>></span><br>
<blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font:inherit" valign="top">Hi ,<br><br>when using a business rule guided editor ,<br>
<br>for a fact, when I select a string type field from the drl guided editor in Guvnor and select <br> is null from the dropdown list of operators,<br><br>I get the following validation error when I do a validate on the rule.<br>
<br>no viable alternative at input 'null' in rule "Asset_Description_NullCheckRule"<br><br>when I do a View Source, it shows the source as <br><br>when<br> Asset( description == null null ) <br>
<br>Is this a bug ? <br><br>if I select the free form drl option and create the when condition as<br><br> Asset( description == null ) , it validates fine.<br><br>Thanks,<br><br>Ram<br></td></tr></tbody></table><br>_______________________________________________<br>
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